YouTube made headlines this week when it decided to change its comment system.

The controversial move provides video creators with greater control over comments - including the ability to moderate before publishing - and the use of Google+.

Elsewhere in tech news, Facebook has decided to revamp the look of its 'like' button by dropping the iconic 'thumbs up', which has been replaced by a simple 'F'.

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Sky have released four limited edition Sky+HD 2TB boxes to reflect some of their strongest on-demand content. A choice of Minnie Mouse, Dracula, Mad Men and Flying Monsters themes are available.

Finally, Argos spoke out about its MyTablet stock, after speculation grew that it had been withdrawn due to poor reviews. The retailer said that the claims are not true and that they were actually "surprised by the high levels of demand".

Browse through all of the week's biggest tech stories in our gallery below: